Folding box.



M. J. REILLY.

:FOLDING BOX.

APPLICATION FILED NovL 12, 191s.

1, l 121,559. Patented 001:.6, 1914.

2 SHEETS-SHEET l.

WH N Tum III,

THE NURRIS PETERS CU.. PHOTULITHUA. WASHINTON, DA

M. J. REILLY. FOLDING BOX.

'APPLICATION FILED NOV. 12, 1913.

1,1 12,559. Patented oct. 6, 1914.

-2 sums-SHEET 2.

HE MORRIS PETERS CO.. PHOTU-LITHO.. WASHINGTON. D. c

UNITED STATES PATENT OFFICE.

MICHAEL J. REILLY, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-FIFTH TO GEORGE A.

CREGIER, ONE-FIFTH IO JOI-IN W. RALEIGH, ONE-FIFTH T0 LAWRENCE F. BAU- NACH. AND ONE-FIFTH TO OSCAR O. ECKSTEIN, ALL OF CHICAGO, ILLINOIS.

FOLDING BOX.

To all whom it may concern Be it known that I, MICHAEL J. REILLY, a citizen of the United States, and a resident of the city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Folding Boxes, of which the following is a specification.

My invention relates to improvements in folding boxes, and has for its object the production of a box of this character which i will be of simple and economical construction, one which, when unfolded, will occupy a very small space for storage or shipment, one which may be readily and easily folded to form the box, and one which, when in folded condition will present a strong and rigid construction.

Other objects will appear hereinafter.

W'it-h these objects in view the invention consists in the combinations and arrangements of parts hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawings forming a part of this specification, and in which,

Figure 1 is a plan view of the blank from which the box is formed, Fig. 2 is a perspective view of the blank folded together to form a complete box, and Fig. 3 is a perspective view showing the blank partly folded, or the box in the course of formation.

rIhe preferred form of construction as illustrated in the drawings comprises a blank of substantially rectangular outliie which is formed of a single sheet of thin flexible material, cardboard, pasteboard, or other similar suitable material being preferably used. This blank is provided at opposite corners with parallel slits 1 arranged in pairs which extend inwardly from the periphery of the blank, as shown in Fig. 1. Provided at the remaining two corners of the blank are inwardly extending parallel slits 2 arranged relatively the same as the slits 1, said slits 2 being however, shorter that the slits 1, as illustrated. Extending between the slits 1 and perpendicular thereto are creases 3 and et which, together with said slits define the lateral walls 5 and 6 of the box, two sides or edges of the bottom 7 of the box being also defined by the creases 4L. Provided in the remaining two corner por- Speccaton of Letters Patent.

Application led November 12, 1913.

Patented Oct. 6, 1914. serial No, 800,464.

tions of the blank are creases 3 and 9 positioned relatively to correspond with the creases 3 and e, said creases 8 and 9 together with creases 10,which are extended inwardly from the slits to meet the inner terminals of the creases 1, defining the remaining lateral walls 11 and 12 of the box.

Triangular ears 13 are constituted by reason of the positioning of slits 1 and 2, which ears are united with the respective ends of the lateral walls 11 and 12 at the creases 10. The ears 13 are provided with creases 14 extending in alinement with the creases 8 which permit of the end portions 15 of said ears being bent at right angles to the bodies of said ears in the formation of the box, as hereina. lter described.

In the formation of the box, the Corner portions 16 and 17, and 18 and 19 defined respectively by the creases 3 and 8 and slits 1 and 2, are adapted to interlock with each other to hold the walls of the box in operative position and incidentally to form the top wall of the box. In order to adapt said corner portions to interlock with each other as mentioned, the corner portions 1G and 18 are provided with slits 2O which result in the formation of spear heads at said corners which are adapted to engage with slits or openings 21 which are formed in the corner portions 17 and 19, creases 22 being provided in said spear headed corner portions to permit of the lukes 23 thereof being bent nach in passing said spear headed corner portions through the openings 21, as will be readily understood, said flukes after passing through said openings, being bent to their initial positions so as to effectively lock the cooperating corners together as clearly shown in Figs. 2 and 3.

In forming the box, the portions 15 of the ears 13 are first bent upwardly along the creases 14 whereupon said ears are bent upwardly along the creases 10. Next, the lateral walls 11 and 12 are defined by bending at the creases 8 and 9, whereupon the corner portions 18 and 19 are interlocked in the manner shown in Fig. 3. In this operation, the ears 13 will extend perpendicular or at right angles to the lateral walls 11 and 12, the inner ends of the ears extending from corresponding ends of said Walls overlapping, as clearly shown in said Fig. 3. The portions 15 of said ears assume positions under the overlapping corner portions 18 and 19. Next, the lateral walls 5 and 6 are formed by bending at 'creases 3 and fl, wliereupon the corner portions 1G and 17 are interlocked, completing the box, as shown in Fig. Q. The portions 13 serve primarily to close the joints at the corners of the box, as will be understood, incidentally reinforcing the lateral walls 5 and G thereof. The overlapping interlocked corner portions 1G and 17, and 1S and 19 serve to securely hold the lateral walls of the box in operative position at the same time constituting the upper wall of the box. ln order to open the box, it is only necessary to disengage said interlocked corner portions, which is readily effected by bending back the flukes Q3, since after this is done, the spear headed portions 1G and 18 will readily pass through the openings 21 engaged thereby.

A box of the construction set forth is extremely simple and economical in construction and hence may be manufactured at a low cost, the same may be readily and quickly formed from the flat blank which is the condition thereof during storage and j shipment, and the box which is formed is strong and durable.

lVhile ll have illustrated and described the preferred form of construction for carrying my invention into effect, this is capable of variation and modification without departing from the spirit of the invention. l, therefore, do not wish to be limited to the precise details of construction set forth, but desire to avail myself of such Variations and modifications as come within the scope of the appended claims.

Having described my invention what l claim as new and desire to secure by Letters Patent is:

1. A folding box comprising a substani tially rectangular blank, the interior of said blank being slit and creased to form the walls of the box, opposite corners of said blank overlapping each other at the top of t-he box and being slit and creased to interlock with each other to hold the walls of the box in operative positions, the corner portions of the blank forming the top wall of the box, there being parallel slits extending inwardly from the periphery of said blank at each of the corners thereof, and there being creases extending perpendicular to said slits to define the walls of the box, the slits at two opposite corners of said blank being shorter than those at the other corners thereof, and there being creases extended inwardly from said shorter slits a distance corresponding with the longer of said slits, substantially as described.

2. A folding box comprising a blank having its central portion creased defining a substantially rectangular bottom, there being parallel slits extending from the ends of two of the parallel sides of said bottom and parallel creases extending from the other parallel sides of said bottom defining triangular portions between said last mentioned creases and slits, parts of the portions between said last mentioned creases being disposed upright forming the sides of the box and the remaining parts thereof disposed parallel to said bottom and partially forming the top of the box, parts of the portions of said blank between said parallel slits being disposed upright and forming the ends of the box and the remaining parts of such last mentioned portions being disposed parallel with said bottom and finishing the top of the box, and parts of said triangular portions disposed on the inner sides of said ends and the remaining parts of said triangular portions being disposed under the top of the box, substantially as described.

In testimony whereof l have signed my name to this speciiication in the presence of two subscribing witnesses.

MGHAEL J. REILLY.

lVitnesses JOSHUA lt. li". Porre, HELEN F. Lunnis.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents.

Washington, ID. C. 

